Date: Thu, 19 Feb 2026 19:28:27 +0000 From: Colin Percival <cperciva@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Cc: Timo =?utf-8?Q?V=C3=B6lker?= <timo.voelker@fh-muenster.de> Subject: git: 28b5b653a567 - releng/14.4 - icmp6: clear csum_flags on mbuf reuse Message-ID: <6997645b.44735.4dcd799c@gitrepo.freebsd.org>
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The branch releng/14.4 has been updated by cperciva: URL: https://cgit.FreeBSD.org/src/commit/?id=28b5b653a5672104d5c376a2d36fc4282e6bc062 commit 28b5b653a5672104d5c376a2d36fc4282e6bc062 Author: Timo Völker <timo.voelker@fh-muenster.de> AuthorDate: 2026-02-19 14:15:10 +0000 Commit: Colin Percival <cperciva@FreeBSD.org> CommitDate: 2026-02-19 19:21:55 +0000 icmp6: clear csum_flags on mbuf reuse When icmp6 sends an ICMPv6 message, it reuses the mbuf of the packet that triggered the ICMPv6 message and prepends an IPv6 and ICMPv6 header. For a locally generated packet with checksum offloading, the mbuf still has csum_flags set indicating that a SCTP/TCP/UDP checksum has to be computed and inserted. Since this not the case anymore, csum_flags need to be cleared. PR: 293227 Reviewed by: kp, zlei, tuexen MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D55367 (cherry picked from commit ada4dc77577f7162353e8c2916ba5c258b6210f0) (cherry picked from commit 0a87ae18331d5c52dde1e5a4f13ee577e8e5e188) --- sys/netinet6/icmp6.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sys/netinet6/icmp6.c b/sys/netinet6/icmp6.c index 8d6e04c926c7..3fe0bec536e8 100644 --- a/sys/netinet6/icmp6.c +++ b/sys/netinet6/icmp6.c @@ -2163,6 +2163,7 @@ icmp6_reflect(struct mbuf *m, size_t off) m->m_flags &= ~(M_BCAST|M_MCAST); m->m_pkthdr.rcvif = NULL; + m->m_pkthdr.csum_flags = 0; ip6_output(m, NULL, NULL, 0, NULL, &outif, NULL); if (outif) icmp6_ifoutstat_inc(outif, type, code);home | help
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